Lincoln, Roosevelt - and Mozart??

Abraham Lincoln, Franklin Delano Roosevelt and Wolfgang Amadeus Mozart had something in common:
Lincoln was assassinated on April 14, sadly short of the ensuing unification of North and South he so assiduously wished for; a dream denied.
Roosevelt died just eighteen days before the suicide of Adolf Hitler and less than a month before the surrender of Nazi Germany; again, realities denied him.
Mozart died as he approached his 35th year, before one of his most sublime expressions, the Requiem, could be completed.
I sometimes think of these three because of the poignancy I attach to the impact of consummation of such elemental missions being denied them by the powers of circumstance.